Offset butterfly valves are commonly equipped with various types of actuators to automate their operation and provide remote control capabilities.

Some of the commonly used actuators include:

1. Electric Actuators: Electric actuators use an electric motor to rotate the valve shaft and control the position of the valve disc. They are suitable for applications where precise positioning and remote control are required. Electric actuators can be equipped with various control options, such as on/off, modulating, or proportional control.

2. Pneumatic Actuators: Pneumatic actuators use compressed air or gas to operate the valve. They convert pneumatic energy into mechanical motion to open or close the valve. Pneumatic actuators are widely used in industrial applications where quick response times and high reliability are required.

3. Hydraulic Actuators: Hydraulic actuators use hydraulic fluid to operate the valve. They provide high force output and precise control over valve positioning. Hydraulic actuators are commonly used in heavy-duty applications or where high torque requirements are needed.

4. Manual Actuators: Manual actuators, such as handwheels or levers, are used to manually operate offset butterfly valve . They are typically used as backup or emergency control mechanisms in case of power failure or when manual operation is required for maintenance or testing purposes.

5. Spring Return Actuators: Spring return actuators use a spring mechanism to automatically return the valve to a predetermined position (usually the fully closed or fully open position) when power or air pressure is removed. They are often used in safety-critical applications to ensure fail-safe operation.

6. Double-Acting Actuators: Double-acting actuators use pneumatic or hydraulic pressure to operate the valve in both opening and closing directions. They provide fast and reliable operation and are suitable for applications where precise control over valve positioning is required.

7. Rotary Actuators: Rotary actuators convert rotary motion into linear motion to operate the valve. They are compact and lightweight and can be easily integrated into the valve assembly. Rotary actuators are commonly used in applications where space is limited or where a compact design is required.

8. Smart Actuators: Smart actuators incorporate advanced control and monitoring features, such as position feedback, diagnostics, and communication capabilities. They enable remote monitoring and control of valve operation and provide valuable data for predictive maintenance and optimization of system performance.

The choice of actuator depends on factors such as the application requirements, operating conditions, available power sources, and control preferences. By selecting the appropriate actuator, offset butterfly valves can be automated to meet specific operational needs and performance objectives.